I think we're way past discussing whether O Sensei was involved in developing internal strength or not. Or whether it is real or not ( as a group I think). How much , to what degree, in what vein, with what kind of approach, where , when and using which methods; thats a lot harder to quantify. But I think it is also clear that Aikido does not pretend to be Tai Chi or Xingyi.

Reading Ellis's last blog about Akuzawa, does that sound like there is something less awesome or unusual in that kind of power? Even if it is not the same as Chen tai chi?

And, is there anything woowoo being proposed by Internal Strength proponents?

And why dont you find any Chen tai chi people winning MMA? And does Mike Tyson feel left out for not having trained in it?